History of roots 2 changes

In crates/cylinder/src/lib.rs, lines 298–307 on 6c3dbe2018e0dc400f47dd6a8f33748393649b94b7fd05ba62120bbe7a3d9ccf. Every change that wrote or deleted one of these lines, or deleted a line from between them. Exact, because each line keeps its identity across edits; edits elsewhere in the file are not here. Also: oxy log -L 298,307:crates/cylinder/src/lib.rs.